{"id":61154,"date":"2026-04-21T17:38:25","date_gmt":"2026-04-21T21:38:25","guid":{"rendered":"https:\/\/www2.stockmarketwatch.com\/stock-market-news\/strait-of-hormuz-declared-fully-shut-as-iran-defies-u-s-blockade-canada-seeks-tariff-relief\/61154\/"},"modified":"2026-04-21T17:38:25","modified_gmt":"2026-04-21T21:38:25","slug":"strait-of-hormuz-declared-fully-shut-as-iran-defies-u-s-blockade-canada-seeks-tariff-relief","status":"publish","type":"post","link":"https:\/\/www2.stockmarketwatch.com\/stock-market-news\/strait-of-hormuz-declared-fully-shut-as-iran-defies-u-s-blockade-canada-seeks-tariff-relief\/61154\/","title":{"rendered":"Strait of Hormuz Declared &#8220;Fully Shut&#8221; as Iran Defies U.S. Blockade; Canada Seeks Tariff Relief"},"content":{"rendered":"<h2>Key Takeaways<\/h2>\n<ul>\n<li><strong>Iran has declared the Strait of Hormuz &quot;effectively fully shut,&quot;<\/strong> citing the continued U.S. naval blockade as an act of ongoing hostility.<\/li>\n<li><strong>Peter Navarro, <a href=\"https:\/\/thestockmarketwatch.com\/live\/trump-stock-market\" data-internallinksmanager029f6b8e52c=\"8\" title=\"Trump\">Trump<\/a>\u2019s trade adviser,<\/strong> argues that eliminating Iranian &quot;terror risk&quot; could remove a <strong>$5 to $15 per barrel &quot;hidden tax&quot;<\/strong> on global oil prices.<\/li>\n<li><strong>Canada\u2019s chief U.S. trade negotiator<\/strong> has confirmed a mandate to secure <strong>relief from U.S. tariffs<\/strong> as part of the broader <strong>USMCA renewal<\/strong> process.<\/li>\n<li><strong>Global energy markets<\/strong> face severe disruption, as the Strait typically handles roughly <strong>20% of the world&#39;s oil and liquefied natural gas (LNG)<\/strong>.<\/li>\n<li><strong>Energy sector volatility<\/strong> is expected to rise, directly impacting major producers like ExxonMobil (<a href=\"\/stock\/XOM\">XOM<\/a>) and Chevron (<a href=\"\/stock\/CVX\">CVX<\/a>).<\/li>\n<\/ul>\n<p>Iran\u2019s semi-official <strong>Tasnim News Agency<\/strong> reported Tuesday that the <strong>Strait of Hormuz<\/strong> is now considered &quot;effectively fully shut&quot; due to escalating military tensions. Tehran maintains that the current <strong>U.S. naval blockade<\/strong> constitutes an act of war and has vowed that the strategic waterway will remain closed until all hostile measures are lifted.<\/p>\n<p>The closure of this critical maritime chokepoint has sent shockwaves through global energy logistics. Analysts warn that a prolonged shutdown could force a massive redirection of oil supplies, significantly increasing transportation costs and insurance premiums for tankers. Major energy firms, including ExxonMobil (<a href=\"\/stock\/XOM\">XOM<\/a>) and Chevron (<a href=\"\/stock\/CVX\">CVX<\/a>), are monitoring the situation closely as the risk of supply-side shocks intensifies.<\/p>\n<p>White House trade adviser <strong>Peter Navarro<\/strong> recently framed the conflict as a necessary step to stabilize long-term energy costs. Navarro contends that Iran\u2019s regional influence has imposed a <strong>&quot;terror premium&quot;<\/strong> on global crude, artificially inflating prices for decades. He suggested that neutralizing this risk could eventually drive oil prices toward a lower equilibrium, potentially falling below <strong>$60 a barrel<\/strong> once stability is restored.<\/p>\n<p>Simultaneously, North American trade relations are reaching a pivotal juncture. <strong>Janice Charette<\/strong>, Canada\u2019s chief U.S. trade negotiator, stated that her primary mandate includes securing <strong>tariff relief<\/strong> from the United States. While Canada remains committed to the <strong>USMCA renewal<\/strong>, the push for relief highlights growing friction over protectionist policies and cross-border trade barriers.<\/p>\n<p>The dual crises in the Middle East and North American trade represent a complex challenge for global markets. Investors are increasingly focused on whether the U.S. will intensify its &quot;Operation Epic Fury&quot; or seek a negotiated settlement to reopen the Strait. For now, the &quot;hidden tax&quot; of geopolitical risk remains a dominant factor in the pricing of <strong>Brent<\/strong> and <strong>WTI<\/strong> crude.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Key Takeaways Iran has declared the Strait of Hormuz &quot;effectively fully shut,&quot; citing the continued U.S. naval blockade as an 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